2:03 p.m. Call received by Clear Creek County Emergency Dispatch 2:11 p.m. Sheriff on the scene
2:12 p.m. Workers report initial injury information
2:38 p.m. Fire and EMS on the scene
3:21 p.m. Two injured workers transported by ground ambulance
3:24 p.m. One injured worker transported by air ambulance
3 p.m. - 3:30 p.m.: Last communication with trapped crew
4:30 p.m. Self-Contained Breathing Apparatus and radio lowered to trapped crew
5-5:30 p.m. Fans at the bottom of the penstock were reversed to draw out the smoke
5:30 p.m. Henderson Mine Rescue is positioned at the lower Penstock portal
5:45 p.m. Henderson Mine Rescue enters lower penstock portal
6 p.m. West Metro Fire and Alpine Rescue are positioned at top of penstock
6:16 p.m. Henderson Mine rescue locates work area
6:30: Henderson Mine Rescue report that fire self-extinguished
7:00 Radio communication supported with installation of portable repeater
7:51 Henderson Mine Rescue locate trapped workers
8:10 Incident command notified that workers are deceased